Mexico is planning a big new tourism center near the US border along the Gulf of Mexico. The Fonatur agency that also created Cancun says its new "Costa Lora" development should eventually have 20,000 rooms for guests and create 115,000 jobs.  It's based in the municipality of  Soto la Marina, roughly 100 miles (160 kilometers) south of Brownsville, Texas. Some $4 billion in private investment is supposed to go into the 20 square-mile (5,334-hectare) area. The name honors the Atlanti...